scsh-packages/scheme/install-lib install-lib.scm

[Michel Schinz <michel-schinz@users.sourceforge.net>]

Update of /cvsroot/scsh/scsh-packages/scheme/install-lib
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8030/scheme/install-lib

Modified Files:
        install-lib.scm 
Log Message:
- permissions can now be specified as a function or an integer
  (equivalent to a constant function) everywhere,
- create-directory&parents is now independent from the installation
  library and could be reused in other contexts,
- incorporated first part of Martin's changes, which fix a problem
  with install-string: it now accepts optional permissions, and does
  not create a file in a dry run.